javascript 定时自动切换的选项卡Tab- Javascript

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Javascript 中的 javascript 定时自动切换的选项卡Tab

出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2010-01-10 浏览: 264 ::

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JS 仿Flash动画放大/缩小容器图片友情链接滚动横向,带控制按钮

JavaScript配合CSS制作一个能自动切换的网页选项卡,每隔一段时间,它就自动切换选项卡列表和标题,时间自设. 这里要注意,用于产生changeTabInterval的随机数，防止页面上TabPane过多，如果设置的changeTabInterval都一样的话会产生整齐划一的切换的效果，不美观.

<title>自动切换Tab选项卡</title>
<script type="text/javascript">
function randint(m,n)//产生m-n之间的随机整数
{ return Math.random()*(n-m)+m;
}
function IfNull(a,dv)
{ return typeof(a) =="undefined"?dv:a;
}
var TabPaneConfig = {
idPrefix: "tab-panel-object-",
idCounter: 0,
getId: function(){ return this.idPrefix+this.idCounter++;},
tabHeadId: "tabHead",
tabHeadClass: "tab-head tab-border",
tabBodyId: "tabBody",
tabBodyClass: "tab-border"
}
function TabPane(id,changeTabInterval,isAutoChangeTab){
this.id = id;
this.height = "100%";
this.width = "100%";
this.tabPages = 0;
this.head = null;
this.body = null;
this.changeTabInterval=IfNull(changeTabInterval,10);
this.isAutoChangeTab=IfNull(isAutoChangeTab,true);
this.changeTabTimerId = null;
}
TabPane.prototype.init = function(){
var r = document.getElementById(this.id);
if(!r.style.overflow) r.style.overflow = "auto";
r.className = "tab";
//create head
var div = document.createElement("div");
div.id = TabPaneConfig.tabHeadId;
div.className = TabPaneConfig.tabHeadClass;
r.appendChild(div);
this.head = div;
var ul = document.createElement("ul");
div.appendChild(ul);
//create body
div = document.createElement("div");
div.id = TabPaneConfig.tabBodyId;
div.className = TabPaneConfig.tabBodyClass;
r.appendChild(div);
this.body = div;
if(this.isAutoChangeTab)
{ var tabPane = this; this.changeTabTimerId = setInterval(function(){onChangeTabTimer(tabPane);},this.changeTabInterval*1000);
}
}
TabPane.prototype.stopChangeTabTimer = function ()
{ if(this.isAutoChangeTab)
{
clearInterval(this.changeTabTimerId);
}
}
TabPane.prototype.addTabPage = function(obj)
{
if(!document.getElementById(obj.panel)) return;
if(!this.tabPages) this.init();
this.head.firstChild.appendChild(this.createTabTitle(obj));
this.body.appendChild(document.getElementById(obj.panel));
this.tabPages++;
}
TabPane.prototype.createTabTitle = function(obj){
var li = document.createElement("li");
li.id = TabPaneConfig.getId();
li.data = obj.panel;
var tabPane = this;
li.onclick=function(){tabOnClick(tabPane,li)};
li.style.width = obj.width;
if(this.tabPages)
{
li.className="";
document.getElementById(obj.panel).style.display="none";
}
else
{
li.className="hover";
document.getElementById(obj.panel).style.display="block";
}
var textNode = document.createTextNode(obj.title);
li.appendChild(textNode);
return li;
}
//得到所有Tab页的Li元素
TabPane.prototype.getLiArr = function()
{ return this.head.firstChild.children;
}
TabPane.prototype.getAcitveLi = function()
{ var liArr = this.getLiArr();
for(var i=0; i<liArr.length; i++)
{ if(liArr[i].className=="hover") { return liArr[i]; }
}
}
//切换到指定的li对应的Tab页
TabPane.prototype.changeToTab = function (li)
{
var liArr = this.getLiArr();
for(var i=0; i<liArr.length; i++)
{
liArr[i].className="";
document.getElementById(liArr[i].data).style.display="none";
}
li.className="hover";
document.getElementById(li.data).style.display="block";
}
//得到v在数组arr中的序号
function indexOf(arr,v)
{ for(var i = arr.length; i-- && arr[i] !== v;); return i;
}
function onChangeTabTimer(tabPane)
{
var liArr = tabPane.getLiArr();
var activeLi = tabPane.getAcitveLi();
var i = indexOf(liArr,activeLi);
var nexti = (i+1+liArr.length)%liArr.length;
var nextLi = liArr[nexti];
tabPane.changeToTab(nextLi);
}
function tabOnClick(tabPane,li)
{ tabPane.stopChangeTabTimer(); tabPane.changeToTab(li);
}
</script>
<style>
.tab {
font-family: Verdana, Helvetica, Arial;
font-size: 12px;
position: relative;
width: 100%;
}
.tab-border {border:1px solid;border-color: rgb(120,172,255);}
.tab-head {
background-color:rgb(234,242,255);;
border:0px;
height:23px;
line-height:20px;
position:relative;
}
.tab-head ul{
border:0px;
height:23px;
list-style:none;
margin:0px;
text-align:center;
padding:0;
position:absolute;
}
.tab-head li{
border: 1px solid;
border-color: rgb(120,172,255);
border-left: 0;
border-bottom: 0;
border-top: 0;
cursor:pointer;
color:#416AA3;
float:left;
display:block;
height:22px;!important;height:20px;
line-height:20px;
padding: 2px 6px 0px 6px;
margin-top: 2px;
margin-right: -1px;
text-overflow:ellipsis;
white-space:nowrap;
overflow:hidden;
}
.tab-head li.hover{
border: 1px solid rgb(120,172,255);
border-bottom: 0;
padding: 0px 6px 3px 6px;
margin: 0px 1px 0px 0px;
background: white;
font-size: 13px;
font-weight: bold;
color: rgb(0,66,174);
overflow:visible;
}
</style>
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<DIV class=rp_2equalcol><A href="#" target=_blank>Delphi多文档几何图形绘制及编辑程序</A></DIV> </div> <script> var tp = new TabPane("divForumBoard",randint(3,10)); tp.addTabPage({title:"公告" ,width:50 ,panel:"divForumCast"}); tp.addTabPage({title:"面板" ,width:50 ,panel:"divForumPanel"}); </script> </div> </div>

[Ctrl+A 全选提示:你可先修改部分代码,再按运行]

JS 仿Flash动画放大/缩小容器图片友情链接滚动横向,带控制按钮

Javascript 中的 javascript 定时自动切换的选项卡Tab

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